Good morning, We’ve found it all depends on the district and individual AHJ…
We do a number of manual wet/dry standpipes in our area and each one comes with it’s own challenges. One of my colleagues just invested in a used fire truck figuring the best course of action is to be over prepared than under. Another company gives “donations” to the local Fire Dept. to come and flow the standpipe at test time (this can get expensive over time). But we always provide a hydraulic calculation for the required flow beforehand. I found most Fire Pump operators start with 90-100 psi and increase by 10 psi until we reach the desired flow and pressure on the roof. From: Chris Dorn <[email protected]> Sent: Wednesday, March 6, 2024 6:53 PM To: Discussion list on issues relating to automatic fire sprinklers <[email protected]> Subject: [Sprinklerforum] Re: Manual Wet Standpipe Inspection We have been required to perform a flow test using the city fire truck and the top two hose valves. I only did it once but the firemen seemed excited to do it. I have been required to run some quick calculations to tell them what pressure the pumper needed to provide at the FDC to give them the pressure they wanted at the top of a standpipe pretty much every one we do. Christopher Dorn Dorn Fire Protection LLC 4132 Dumont Street #4 Cincinnati, Ohio 45226 (513) 295-2499 On Mar 6, 2024, at 5:06 PM, Anthony Carrizosa <[email protected]<mailto:[email protected]>> wrote: Derik, NFPA 25 states flow tests 6.3.1 Shall be conducted every 5 years on all automatic standpipe systems.. your system is not automatic but manual. Since it is under water pressure at all times no need for a hydro test either. Anthony Carrizosa Project Manager | Fire Protection 7855 S 206th St Kent, WA 98032 Cell: 206-679-5283 | Office Dir: 253-341-4593 <image005.jpg> https://archerconstruction.com<https://linkprotect.cudasvc.com/url?a=https%3a%2f%2farcherconstruction.com%2f&c=E,1,Wdb65AWzMgSBzW3HDw91SfcRQCtxDUQKoJf-UowQ-WnB_WMosgG-8W7eLePJ42PwWQvLiQx16Pls052VqwHO7tKm-_u5AnWly0ewkNiMkxn-AjQb1JI,&typo=1> From: Derik Rich <[email protected]<mailto:[email protected]>> Sent: Wednesday, March 6, 2024 1:53 PM To: [email protected]<mailto:[email protected]> Subject: [Sprinklerforum] Manual Wet Standpipe Inspection Looking for some guidance on flow testing a manual wet standpipe. I have been told; A. You don’t have to flow test. B. Perform flow test and calculate assistance needed. C. You need to do a proper test with a pumper truck. The only thing I can find in 25 is that no hydrostatic test is required on manual wet. Can anybody steer me in the right direction? Thanks, <image006.png> Derik Rich Estimator O: 801-281-0746 C: 801-231-6375 A: 1015 S. 3600 W. SLC, UT 84104 E: [email protected]<mailto:[email protected]> <https://www.facebook.com/certfs/> <image007.png><https://www.facebook.com/certfs/> <https://www.linkedin.com/company/14776965/> <image008.png><https://www.linkedin.com/company/14776965/> <https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fcertfs.com%2f&c=E,1,wEIMwwzvZLvEOpO3oTJ9O3LcWCmB_bKGjKeRHx3AqpZFUGqxltzjLXcLL2QdS7_mib0mFs_oH-4geaUkpKI8cLXyYhgAH5J1R_lhzmATVDBZFFmYtVXuxOQ,&typo=1> <image009.png><https://linkprotect.cudasvc.com/url?a=http%3a%2f%2fcertfs.com%2f&c=E,1,wEIMwwzvZLvEOpO3oTJ9O3LcWCmB_bKGjKeRHx3AqpZFUGqxltzjLXcLL2QdS7_mib0mFs_oH-4geaUkpKI8cLXyYhgAH5J1R_lhzmATVDBZFFmYtVXuxOQ,&typo=1> _________________________________________________________ SprinklerForum mailing list: https://lists.firesprinkler.org/list/sprinklerforum.lists.firesprinkler.org To unsubscribe send an email to [email protected]<mailto:[email protected]>
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